When George Sinclair discovered he can destroy ghosts and save their victims, he became a ghost killer.<br /><br />Now, George works alongside his new friends and assists the Watchers: an international group of ghost killers and supernatural experts who monitor the world for ghostly sightings and demon infestations, maintaining the balance between the living and the dead.<br /><br />When San Francisco and the surrounding area are suddenly plagued by rogue ghosts and demons, the Watchers know it isn&#39;t a random occurrence. As George and the Watchers investigate, they discover that a demonic presence is behind the attacks.<br /><br />With time and odds against them, they must find the source of evil and destroy it, or risk extinction of all humankind.